First, it was a yum-yum breaking loose from goal using a keys copied and made using a 3D printer,

Now, it is a gun using parts made from a 3D printer!

This is quite impressive and scary at the same time!

While this guy didn’t build the entire weapon from scratch using the 3D printer, what he did is no less frightening.

From the article:

HaveBlue did not print an entire gun but only a part called the lower receiver, which serves as a frame for the other components of the gun. This component is the only gun part regulated for sale under US law and as such must carry a serial number - unless it's made by a private individual for their personal use, so HaveBlue is not breaking any laws

We are truly living in crazy times.

Full read here.